US7693448B1 - Angled seal for laser toner cartridge hopper - Google Patents
Angled seal for laser toner cartridge hopper Download PDFInfo
- Publication number
- US7693448B1 US7693448B1 US12/479,628 US47962809A US7693448B1 US 7693448 B1 US7693448 B1 US 7693448B1 US 47962809 A US47962809 A US 47962809A US 7693448 B1 US7693448 B1 US 7693448B1
- Authority
- US
- United States
- Prior art keywords
- gasket
- seal
- angle
- cartridge
- pull
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/181—Manufacturing or assembling, recycling, reuse, transportation, packaging or storage
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
- G03G15/0881—Sealing of developer cartridges
- G03G15/0882—Sealing of developer cartridges by a peelable sealing film
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0894—Reconditioning of the developer unit, i.e. reusing or recycling parts of the unit, e.g. resealing of the unit before refilling with toner
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00987—Remanufacturing, i.e. reusing or recycling parts of the image forming apparatus
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/06—Developing structures, details
- G03G2215/066—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material
- G03G2215/0687—Toner cartridge or other attachable and detachable container for supplying developer material to replace the used material using a peelable sealing film
Definitions
- the present application is directed to the field of repair, refurbishment and remanufacture of laser printer toner cartridges, and in particular to a laser printer toner cartridge hopper gasket seal that prevents jamming of the cartridge by having an angled end portion positioned at the end of the gasket next to the pull seal exit slot or port of the cartridge.
- One aspect or cause of the general jamming problem for conventional aftermarket toner cartridge gasket seals is that the pull seal does not always release, or lift up off completely from the opening on the hopper tank gasket. Then, rather than the pull seal lifting off of the gasket, the pull seal remains adhered to the gasket and the combined seal and gasket then lift off of the cartridge hopper to which the gasket is adhered. When that happens then they cause a jam at the pull seal exit port, resulting in the remanufactured laser toner cartridge to be classified as defective.
- Another aspect or cause of the general jamming problem for conventional aftermarket toner cartridges gasket seals is caused by the build up on top of the pull seal of excess toner from post testing as the pull seal is pulled out of the cartridge. This excess toner builds up and forms a tiny roll on the top of pull seal strip, and by the time the roll and pull strip are near the pull seal exit port of the cartridge, their combined diameter is sufficient to cause a jam at the exit port.
- An original equipment manufactured (OEM) cartridge will typical not have this general problem because the pull seal is directly adhered to the toner hopper tank in the OEM manufacturing process.
- OEM original equipment manufactured
- the hopper tank is split into two sections, and then, during the remanufacturing process, the two sections are pressed and held together, typically by welding, or by a manual means, such as by clips, as described in U.S. Pat. No. 6,577,830.
- the laser printer toner cartridge is cleaned and re-assembled, with new components and new toner charged into the hopper tank.
- the resulting remanufactured cartridge can have slight differences in dimensions as related to OEM specifications, and differences exist in aftermarket toner cartridge hopper tank gasket seals and pull strips.
- a remanufactured toner cartridge incorporates a gasket seal, and the hopper tank gasket seal is typically made from foam, so that a good seal of the hopper can be formed by the gasket and the pull strip.
- a remanufactured toner cartridge is provided with gasket that has an angled end on its inner periphery at the end adjacent the cartridge pull seal exit port.
- the combined gasket and the pull seal that is adhered to the gasket is an angled gasket seal that will not jam at the exit port and will not cause the breakage of the pull strip. This is due to the angle of the gasket located at the end of the gasket next to the exit port and where the pull strip is hot melted to the gasket. Because of the angled edge of the gasket, the end of the pull strip at the leading edge of the angle is released first, and then the rest of the end of the pull strip is released along the angled edge of the gasket.
- a laser printer toner cartridge with a toner hopper gasket seal having a foam gasket, an angled portion at the end of the gasket positioned at the cartridge pull seal exit port and a pull seal hot melted to the gasket prevents or minimizes jamming of the pull seal as it is pulled out of the toner cartridge. Angled seals as described herein will not jam in the cartridge, and will not break when the pull seal strip is pulled. This is because the angle between the longitudinal and transverse edges of gasket at the end of the gasket at the pull seal exit port is not 90°. Rather that angle is greater than 0° and less than 90°, and is preferably about 22°.
- the angled hopper tank gasket pull seal overcomes the two problems mentioned; the foam gasket peeling up with the pull seal, thus jamming at the exit seal slot, and the ‘Cigar effect”, which is due to a roll of toner that is rolling up as the pull strip is being removed from the top surface of the foam seal, thus, again jamming at the exit seal slot.
- the problem of the foam gasket being pulled up while the pull strip is being removed is eliminated with the gasket having an angle formed at the end of the gasket just before the exit seal slot. This is accomplished with the end of the seal having an angle formed into the foam gasket at the end, closest to the exit seal slot, where the laser toner cartridge pull strip is pulled to activate the cartridge for printing purposes.
- the angled hopper gasket or angled shape to the gasket, will prevent the foam from lifting and jamming at the exit slot by giving the pull strip very little weld for the pull strip to grab onto as the pull strip is being pulled from the cartridge.
- the heat weld location is the key on to how the angled gasket eliminates the possibility of the hopper tank foam gasket being pulled up with the seal.
- the weld is how the pull strip is attached to the foam gasket.
- the pull strip is welded around the perimeter of the foam gasket and is what seals the gasket, until the strip is pulled out of the cartridge by the end user.
- the weld around the gasket is shaped in a rectangular form or ninety degrees from the weld perpendicular to the weld in question, which results in more surface area on the foam being pulled on the foam gasket, as the pull strip is being removed from the toner cartridge.
- the pull strip is being pulled off the weld and away from the foam gasket and towards the exit seal slot. If the foam lifts off the hopper tank surface as the pull strip is being pulled from the gasket, it will jam at the exit seal slot due to a clearance issue.
- the foam gasket is thicker than the slot that the pull strip, with foam, is trying to slide through.
- the second reason the angled hopper tank gasket works to eliminate the jamming problem on aftermarket cartridges pertaining to pull seal failures is from the excess toner that is in the tank from a post testing procedure that is done after the toner cartridge has been remanufactured to assure its quality. What happens, in some cases, is when the pull strip is being pulled from the hopper tank foam gasket and tearing loose from the weld around the perimeter of the foam gasket, toner will gather and roll up with the pull seal creating a log of toner that has a larger diameter than that of the exit port, thus preventing the remaining portion of the pull seal from being removed causing a defective cartridge.
- FIG. 1 is a perspective view of a conventional remanufactured toner cartridge having a gasket seal pull strip extending out of the exit seal;
- FIG. 2 is a perspective view of a conventional gasket seal of the FIG. 1 cartridge
- FIG. 3 is a perspective view of a conventional remanufactured gasket seal of FIG. 2 showing a roll of toner blocking removal of the pull strip from the cartridge;
- FIG. 4 is a perspective view of a preferred embodiment of an angled laser toner hopper gasket seal
- FIG. 5 is a top view of the FIG. 4 embodiment
- FIG. 6 is a perspective view of the FIG. 4 embodiment showing the seal strip partially removed from the gasket
- FIG. 7 is a perspective view of the FIG. 4 embodiment, showing the seal strip further removed than is shown in FIG. 6 ;
- FIG. 8 is a perspective view of the FIG. 4 embodiment, showing the seal strip further removed than is shown in FIG. 7 .
- FIG. 1 shows a typical, conventional laser printer toner cartridge 20 , as its toner hopper pull seal strip 22 is partially pulled out of the cartridge 20 for operation.
- the pull seal strip 22 exits at the end of the cartridge that has cartridge exit slot 24 . Pulling the pull seal strip 22 out of the cartridge allows toner to be released from the toner hopper tank, as is well known.
- FIG. 2 illustrates a conventional rectangular shaped pull seal 26 used for remanufactured toner cartridges.
- Seal 26 includes foam gasket 28 that preferably has a rectangular outer periphery and a rectangular inner periphery with an opening 30 in its center, to permit transport of toner from the hopper to the cartridge roller section during printing operations.
- the gasket length extends in a longitudinal direction Y
- its width extends in transverse direction X and it has a thickness extending in direction Z.
- the inner peripheral edges are shown as first longitudinal edge 32 , second longitudinal edge 34 , first transverse edge 36 and second transverse edge 38 .
- the four inner peripheral edges are at right angles at their joining corners.
- pull seal strip 40 Overlying the gasket 28 is pull seal strip 40 , preferably made of a polyester film or metalized polyester film, often referred to as Mylar film.
- One end 42 of the seal 26 is near the toner cartridge pull seal exit port or slot.
- the pull strip 40 is hot melted to the foam gasket at or near the inner periphery of the gasket, with a first longitudinal hot melt border shown at 44 and a second longitudinal hot melt border shown at 46 .
- At the end 42 of the gasket hot melt border 48 is shown.
- the pull seal is hot melted in the form of a relatively blunt point or arrowhead, as shown at 50 in FIG. 2 .
- the hot melt adheres the pull strip to the gasket, forms a sealing border around the rectangular opening in the gasket and functions to seal the toner inside of the hopper during transport from the manufacturer to the end user.
- the hot melt border at the end 42 of the gasket has a shape generally conforming to the right angled edges of the inner periphery of the gasket.
- the pointed hot melt pattern 50 facilitates the initial tearing away of the pull seal strip 40 from the gasket 28 .
- the pull seal strip 40 is shown folded over on itself, in a position to be pulled.
- conventional seal 26 of FIG. 2 is shown at a point during removal of the pull seal strip 40 when the pull seal strip 40 has been almost completely pulled out of the cartridge, about to be jammed due to the presence of the cigar effect, i.e., a tiny roll of toner 52 that has formed on the top surface of the pull seal strip 40 as its unattached end is pulled out of the cartridge through the exit port 54 in the direction of arrow 56 .
- jamming occurs due to the roll of toner 52 that prevents the pull seal strip 40 from exiting the cartridge through the seal strip exit port 54 .
- the purpose of the seal strip exit port 54 is to keep the toner cartridge sealed after the toner hopper pull seal 40 has been peeled away from the toner hopper foam gasket 28 .
- toner While the toner cartridge is in use inside of the printer, toner will be drawn from the toner hopper 20 through the opening shown at 58 of the foam gasket 28 and eventually to the paper from the laser printer. This opening at the interface of the hopper section and the roller section of the cartridge must remain sealed in order to prevent toner from leaking out of the cartridge.
- the seal strip exit port 54 has a slot 60 that in turn has enough clearance to allow the pull strip 40 , usually 2 to 5 mils in thickness to be removed by pulling it in the direction shown by arrow 56 .
- excess toner from the post testing that has developed into the roll or cigar shape 52 , inside of the pull strip 40 will not be able to pass through the exit seal port slot 60 .
- the pull seal 40 will jam at the opening or slot of the exit port 54 , thus making the toner cartridge defective.
- the cigar shaped roll 52 of the toner has built up at the right-angled corners where the first and second longitudinal edges 32 , 34 meet the second transverse edge 38 of the conventional gasket 28 , adjacent the hot seal border shown at 62 .
- the thickness of this roll, together with the thickness of the two layers of pull seal 40 at location 64 has a combined thickness sufficient to jam at the opening 60 of the exit port 54 .
- FIG. 4 is a perspective view of a preferred embodiment of an angled gasket seal 66 that includes foam gasket 68 and a pull seal strip 70 .
- the gasket 68 has an opening 72 in its center to permit through flow of toner during printer operation and the sides or edges of the inner periphery include a first longitudinal edge 74 , a second longitudinal edge 76 , a first transverse edge 78 and a second transverse edge 80 .
- the angles formed by the longitudinal edges of the inner periphery with the second transverse edge are acute angles, rather than right angles as in the conventional gasket.
- the pull seal strip 70 is heat sealed over the gasket opening, forms a border seal and has a pointed shape 84 adjacent the first transverse edge 78 , as in the conventional gasket seal described above.
- the heat seal border is shown in FIG. 4 .
- FIG. 5 is a top view of the FIG. 4 angled gasket seal 66 . At the intersection of the first longitudinal edge 74 of the inner periphery of the gasket, and the second transverse edge 80 of the gasket acute angle ⁇ is shown at 82 . While it is believed that various embodiments of the gasket seal having any angle greater than 0 degrees and less than 90 degrees will function to prevent jamming, an angle of about 22 degrees is preferred. The angle shown in FIGS. 4 and 5 is approximately 30 degrees.
- FIG. 6 further illustrates how, as the angled pull strip 70 is pulled in the direction of arrow 86 and thus off of the angled gasket 68 , toner begins to build up along the top surface of the pull strip 70 .
- the toner build up is shown at 88 and a loop of the pull strip 70 is shown at 90 .
- FIG. 7 is a perspective view of the FIG. 4 preferred embodiment seal and at point during removal of the pull strip after that shown in FIG. 6 and close to the point when the end of the pull strip 70 is close to the intersection of the first longitudinal edge 74 and the second transverse edge 80 of the gasket 68 .
- the excess toner build up 92 has increased in comparison to that shown in FIG. 4 , and positioned to jam the exit port 54 at opening 60 .
- During pulling the pull seal strip 70 forms a loop, shown at 94 , above the gathering toner that has reached or is about to reach the position of the angled second transverse edge 80 of the gasket 68 .
- the toner gathered as shown in FIG. 7 would likely cause a jam at port 54 , except for the presence and functioning of angled seal edge 80 .
- FIG. 8 illustrates the angled end 80 of the seal gasket providing a way for the excess toner to by-pass the exit port as the pull strip 70 is pulled off of the gasket 68 .
- by-pass means that the toner is permitted to fall through the opening into the hopper as the seal strip 70 at the corner of the first longitudinal edge 74 and the second transverse edge 80 is lifted up off of the gasket. In this way the toner is not formed into a plug or roll at the end of the gasket, but rather falls through the opening and into the hopper as the end of the seal is progressively broken by lifting it off of the end of the gasket, as shown by arrow 96 .
- the angled seal as describe above also reduces to eliminates jamming due to the gasket lifting up off of the toner cartridge in some instances. It is believed that an angled seal as described and shown herein works for its intended purpose for at lease two reasons. The first reason relates to the gasket lifting problem, and is that the lifting force applied at any given instant to the gasket 68 as the pull seal advances over the acute angled transverse edge 80 is much less than is the lifting force applied to the right angled transverse edge 48 of the conventional gasket during removal of the pull seal in the conventional gasket seal.
- the force applied is split into two directions or into two force vectors, one component in the direction of arrow 46 and the other component perpendicular to that direction. Further more, the force applied is applied from a much small surface area of the seal strip and thus the total applied force is also less.
- the lifting force applied at any instant along this edge is minimized, thus, reducing the chance that the gasket can be pulled up and jammed at the exit port slot 54 .
- the second reason is that as the pull strip is removed from the angled gasket, it provides a path for the excess toner on the top of the pull seal to pass into the hopper tank, thus, preventing jamming at the exit port slot 54 due to the cigar effect.
- the conventional gasket as shown in FIGS. 1-3 provides nowhere for the toner to go, thus resulting in cigar-effect jams at the exit port when the pull seal is removed.
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Abstract
Description
Claims (18)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/479,628 US7693448B1 (en) | 2009-06-05 | 2009-06-05 | Angled seal for laser toner cartridge hopper |
US12/721,192 US7903996B2 (en) | 2009-06-05 | 2010-03-10 | Angled seal for laser toner cartridge hopper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/479,628 US7693448B1 (en) | 2009-06-05 | 2009-06-05 | Angled seal for laser toner cartridge hopper |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/721,192 Continuation US7903996B2 (en) | 2009-06-05 | 2010-03-10 | Angled seal for laser toner cartridge hopper |
Publications (1)
Publication Number | Publication Date |
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US7693448B1 true US7693448B1 (en) | 2010-04-06 |
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ID=42061367
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US12/479,628 Expired - Fee Related US7693448B1 (en) | 2009-06-05 | 2009-06-05 | Angled seal for laser toner cartridge hopper |
US12/721,192 Expired - Fee Related US7903996B2 (en) | 2009-06-05 | 2010-03-10 | Angled seal for laser toner cartridge hopper |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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US12/721,192 Expired - Fee Related US7903996B2 (en) | 2009-06-05 | 2010-03-10 | Angled seal for laser toner cartridge hopper |
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US (2) | US7693448B1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101900975A (en) * | 2010-07-15 | 2010-12-01 | 富美科技有限公司 | Carbon powder box sealing piece |
US9128414B2 (en) | 2013-03-14 | 2015-09-08 | Clover Technologies Group, Llc | Seal |
WO2017196846A1 (en) * | 2016-05-10 | 2017-11-16 | Clover Technologies Group, Llc | Remanufactured toner cartridge and test method therefor |
US10514632B2 (en) | 2016-05-18 | 2019-12-24 | Clover Technologies Group, Llc | Method of remanufacturing a toner cartridge |
CN112697326A (en) * | 2020-12-15 | 2021-04-23 | 珠海美景联合科技有限公司 | Continuous full detection device for pull-out force of toner cartridge seal |
Citations (7)
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JPS5953868A (en) * | 1982-09-22 | 1984-03-28 | Canon Inc | Developer storage container |
US5027156A (en) | 1988-08-26 | 1991-06-25 | Mita Industrial Co., Ltd. | Seal structure for a chamber means containing a developer material |
US6350503B1 (en) | 2000-02-18 | 2002-02-26 | Static Control Components, Inc. | Toner cartridge seal assembly |
US20030170045A1 (en) | 2002-03-05 | 2003-09-11 | Lewis Lawrence Dale | Method of remanufacturing a toner cartridge |
US20030205311A1 (en) | 1999-08-10 | 2003-11-06 | Chitouras Costa G. | Apparatus and method for modifying toner cartridges for sealing |
US20040156650A1 (en) | 2003-02-07 | 2004-08-12 | Nexpress Solutions Llc | Blade cleaner cartridge with dust and lint seal blade |
US7177565B1 (en) | 2003-12-19 | 2007-02-13 | Cartridge Corporation Of America, Inc. | Sealing structure for a toner cartridge |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US5223068A (en) * | 1992-01-27 | 1993-06-29 | Raymond Baley | Reconditioned and resealed toner cartridge, the method of making the same, and a table saw used in this method |
US20060198656A1 (en) * | 2005-03-04 | 2006-09-07 | Static Control Components, Inc. | Toner cartridge seal assembly |
-
2009
- 2009-06-05 US US12/479,628 patent/US7693448B1/en not_active Expired - Fee Related
-
2010
- 2010-03-10 US US12/721,192 patent/US7903996B2/en not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5953868A (en) * | 1982-09-22 | 1984-03-28 | Canon Inc | Developer storage container |
US5027156A (en) | 1988-08-26 | 1991-06-25 | Mita Industrial Co., Ltd. | Seal structure for a chamber means containing a developer material |
US20030205311A1 (en) | 1999-08-10 | 2003-11-06 | Chitouras Costa G. | Apparatus and method for modifying toner cartridges for sealing |
US7175725B2 (en) | 1999-08-10 | 2007-02-13 | Chitouras Costa G | Apparatus and method for modifying toner cartridges for sealing |
US6350503B1 (en) | 2000-02-18 | 2002-02-26 | Static Control Components, Inc. | Toner cartridge seal assembly |
US20030170045A1 (en) | 2002-03-05 | 2003-09-11 | Lewis Lawrence Dale | Method of remanufacturing a toner cartridge |
US20040156650A1 (en) | 2003-02-07 | 2004-08-12 | Nexpress Solutions Llc | Blade cleaner cartridge with dust and lint seal blade |
US7177565B1 (en) | 2003-12-19 | 2007-02-13 | Cartridge Corporation Of America, Inc. | Sealing structure for a toner cartridge |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101900975A (en) * | 2010-07-15 | 2010-12-01 | 富美科技有限公司 | Carbon powder box sealing piece |
US9128414B2 (en) | 2013-03-14 | 2015-09-08 | Clover Technologies Group, Llc | Seal |
WO2017196846A1 (en) * | 2016-05-10 | 2017-11-16 | Clover Technologies Group, Llc | Remanufactured toner cartridge and test method therefor |
US10303087B2 (en) | 2016-05-10 | 2019-05-28 | Clover Technologies Group, Llc | Remanufactured toner cartridge and method |
US10452000B2 (en) | 2016-05-10 | 2019-10-22 | Clover Technologies Group, Llc | Remanufactured toner cartridge and method |
US10514632B2 (en) | 2016-05-18 | 2019-12-24 | Clover Technologies Group, Llc | Method of remanufacturing a toner cartridge |
US11016418B2 (en) | 2016-05-18 | 2021-05-25 | Clover Imaging Group, Llc | Method of remanufacturing a toner cartridge |
CN112697326A (en) * | 2020-12-15 | 2021-04-23 | 珠海美景联合科技有限公司 | Continuous full detection device for pull-out force of toner cartridge seal |
Also Published As
Publication number | Publication date |
---|---|
US20100310270A1 (en) | 2010-12-09 |
US7903996B2 (en) | 2011-03-08 |
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